# Number Sense Blog

By Mathnasium | Added Jan 23, 2019

Q: How do they throw a party on a construction site?
A: They raise the roof!

When you need elementary math help, Mathnasium is the place to come! Our weekly word problem challenges give you the opportunity to practice your learning center math at home. This week’s word problem challenge will have you digging up your best elementary school math skills such as multiplication, weight conversion, addition and subtraction to find the solution.

Go ahead and give this word problem a try. We know you can do it! When you've taken your time and worked it out, look below to check your solution against ours.

Question: A truck that weighs 4 tons when empty carries 1 ton of gravel. The driver unloads 500 pounds of gravel at a construction site. How many pounds do the truck and the gravel weigh in total now?

Solution: A ton is 2,000 pounds, so the truck itself weighs 2,000 × 4 = 8,000 pounds. The truck starts with 2,000 pounds of gravel, so after it leaves the construction site, it has 2,000 – 500 = 1,500 pounds of gravel in the back. In total, that’s 8,000 + 1,500 = 9,500 pounds.

(Image above by Phil Whitehouse)

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Bedtime Math: http://bedtimemath.org/

National PTA: http://www.pta.org/

NCTM: http://www.nctm.org/

Numberphile: http://www.numberphile.com/

PTO Today: http://www.ptotoday.com/

STEM Connector: http://blog.stemconnector.org/

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